Extensible shade-roller.



No. 674,752. Patented May 2|, "JUL 0. A. BAKER.

EXTENSIBLE SHADE ROLLER.

(Application filed Oct. 29. 1900.)

(No Model.)

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UNIIFD STATES PATENT OFFICE.

CHARLES A. BAKER, OF WVAUKESHA, VVlSOONSlN, ASSIGNOR TO THE BALL BEARING SHADE ROLLER COMPANY, OF SAME PLACE.

EXTENSIBLE SHADE-ROLLER.

SPECIFICATION forming part of Letters Patent No. 674.752, dated .llday 21, 1901.

Application filed October 29.1900. Serial No. 34.754. (No model) To (tZZ whom it may concern: as shown, preferably beyond both ends of the Be it known that I, CHARLES A. BAKER, a coupling project suitable brace plates or resident of the cityand countyof \Vaukesha, blades B, that serve to enter the correspondin the State of Wisconsin, havein vented cering slotted ends of the sections of the shade- 5 Iain new and useful Improvements in Extenroller to be extensibly connected. As shown,

sible Shade-Rollers, of which the following the brace-plates are of cruciform arrangeis a full, clear, and exact description. ment and are formed of two separate plates, This invention has relation more particueach of these plates being provided with a larly to that class of shade-rollers in which slot 5, whereby the plates may beinterlocked. 6o provision is made whereby the length of the Preferably, also, the plates are provided with rollers may be varied to suit different widths projecting lugs b, that are adapted to enter of shades; and the invention consists in the slots or holes formed in the tubular portion features of improvement hereinafter de- A of the coupling. So, also, I prefer to form scribed,illustratedintheaccompanyingdrawone of the plates B with a laterally-extend- 65 i ings, and particularly pointed out in the ing edge 19 against which the edges of the claims at the end of this specification. tubular portion A will abut and to which Figure 1 is a view in side elevation of an such'edges will be united by solder orin any extensible shade-roller embodying my invenother convenient manner. When the blades tion. Fig. 2 is a detail perspective view of B have been set together, the solid portion 76 one of the end portions of the roller. Fig. 3 of one blade entering the slot of the other is a detail perspective view of the coupling blade, I prefer to run solder along the joints or connector whereby the end sections of the in order to give greater rigidity to the parts. roller will be joined. Fig. 4is aview in cross- The projecting portions of the blades or section on line at 4: of Fig. 1. Figs. 5 and 6 plates are adapted to enter the ends of the 75 are detail perspective views of the plates or wooden sections (3 of the shade-roller, and for blades of the coupling. this reason the ends of these sections are In the manufacture of extensible shadeformed with cruciform slots 0, the arrangerollers it has been heretofore proposed to emment of which corresponding with that of the ploy a coupling consisting of a sheet-metal plates or blades B. As shown, the end of 80 plate bent to tubular shape, its edges being each of the sections 0 is reduced, as at c, to brought approximately together and bent inpermit such end to enter the tubular portion wardly to enter axial slots formed in the pe- A of the coupling. riphery of the sections of the roller when the From the foregoing description it will he ends of such sections were inserted within seen that when the opposing ends of the 85 said tubular coupling. Such construction, wooden sections 0 of the shade-roller are however, has been found objectionable, for within the coupling the blades or plates that the reason that when the wooden sections of project beyond the ends of the coupling will the roller had been withdrawn to a considerbe embedded within the slotted portions of able extent from the tubular coupling the the ends of the wooden sectionsandwillbrace 9o weight of the sections and the weight of the and strengthen such portions of the roller. shade tended to spread the ends of the tubu- So, also, it will be observed that even when the lar coupling, thereby permitting the roller to wooden sections of the roller are approxisag at the center. By my present invention mately withdrawn from the tubular portion provision is madewherebygreat rigidity shall of the coupling the plates or blades B will 5 be given to the roller-sections even when the still brace the ends of the sections, so as to ends of these sections have been approxiprevent any sagging of the roller at the cenmately withdrawn from the tubular portion ter and to prevent also any tendency to spread of the coupling. the ends of the tubular part of the coupling.

Preferably the tubular portion Aof my im- While I have described what I regard as 5 proved coupling is formed of sheet metal of the preferredform of the invention, itis manicylindrical shape. Beyond one at least and, fest that the details of construction above set out may be varied widely without departing from the spirit of the invention. So far as I am aware the invention presents the first instance of a shade roller having a coupling with the tubular portion provided with a brace -plate or part of any kind extending therefrom and adapted to enter the wooden portion of the roller. While four projecting blades are shown at each end of the coupling in cruciform arrangement as the preferred construction, this is not essential, although I prefer that at least two of such projecting blades should be employed and that they should be arranged at an angle with respect to each other, as this arrangement gives greater rigidity to theprojecting blades or plates and hence better serves to prevent the sagging of the roller.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An extensible shade-roller comprising sections, one of which has a slotted end, and a coupling having a tubular portion to adj ustably receive said end, and having a projecting blade or part extending beyond the end of said tubular portion and adapted to enter the slotted end of said section.

2. An extensible shade-roller comprising sections, one of which has a slotted end, and a coupling having a tubular portion to adjustably receive said end, and having plural blades extending beyond the end of said tubular portion and at an angle to each other, said blades being adapted to enter the slotted end of said section.

3. An extensible shade-roller comprising sections, one of which has intersecting slots, and a coupling having a tubular portion, and having intersecting plates or blades to enter said slots of said section.

secting plates located within said tube and projecting therefrom so as to enter the slots of said roller-sections.

6. An extensible shade-roller comprising two wooden sections provided with slotted ends, and a coupling for uniting said sections, consisting of a sheet-metal tube and intersecting plates within said tube and adapted to enter the slots of said roller-sections, said plates being united to said tube.

7. An extensible shade-roller comprising sections, one of which has a slotted end, and a coupling comprising an open tube to adjustably receive said end, and a blade within said tube attached to the opposite sides thereof and adapted to enter the slotted end of said section.

8. An extensible shade-roller comprising sections, one of which has a slotted end, and a coupling comprising a cylindrical portion to adjustably receive said end, and having a projecting blade secured to the opposite sides of said cylindrical portion and extending beyond its end, said blade being adapted to enter the slotted end of said section.

CHARLES A. BAKER.

Witnesses:

' J. E. DARBY, A. J. FRAME. 

